[qib7322] Fix compiler warning on gcc 4.7

Originally-fixed-by: Christian Hesse <list@eworm.de>
Signed-off-by: Michael Brown <mcb30@ipxe.org>

diff --git a/src/drivers/infiniband/qib7322.c b/src/drivers/infiniband/qib7322.c
index b66f8eff90ec7206a95e963b41b2b41424060ebd..8b61b8dc817316942276b6849b8d71f180f76074 100644 (file)
--- a/src/drivers/infiniband/qib7322.c
+++ b/src/drivers/infiniband/qib7322.c
@@ -2062,6 +2062,9 @@ static int qib7322_ahb_read ( struct qib7322 *qib7322, unsigned int location,
        struct QIB_7322_ahb_transaction_reg xact;
        int rc;
 
+       /* Avoid returning uninitialised data on error */
+       *data = 0;
+
        /* Initiate transaction */
        memset ( &xact, 0, sizeof ( xact ) );
        BIT_FILL_2 ( &xact,